Quote:
Originally Posted by DonaldStott
What voltage should I expect on V1 Pin 3 (cathode) - there is nothing shown in the KB Museum Schematic whereas on Trader Service Sheet 1233 it states that this should be 1.3V?
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The cathode voltage for V1 is given in the manufactures manual, it's given as 1 volt in the valve voltages table....The voltages quoted were measured using a 20kohm per volt meter.
The voltages given on the Trader sheet were measured using an AVO electronic meter (VTVM)
The difference in the loading effect on V1's cathode voltage for all intents and purposes will be zilch, ditto for the heater voltage.
Lawrence.